If your extension cord gets tangled up, don't pull on the ends. Instead, gently loosen all the tighter snarls in the middle until them become larger loops that can easily be untangled. A way to avoid tangles is to use a retractable cord reel. It will let you reel out only the amount of cord you need, then quickly reel it back when you're done.
Many people find bamboo flooring very attractive. It looks similar to regular wood flooring, but it is harder and more durable. Bamboo has a short growing time, so it is a rapidly renewable resource. Most bamboo flooring contains trace amounts of formaldehyde; one brand that does not is Bamboo Hardwoods, and Teragren contains very low levels.